of ottawa



July 24, 1928. 1,678,468

G. A. HERRON OPERATING MECHANISM'TOR wmrrnas Filed March 29, 1927 IN VEN TDR -G-eor; e fl-Herron [715 Attorney Patented July 24, 1928.

UNITED STATES PATENT OFFHZE.

GEORGE A. HER/RON, OF OTTAVTA, ONTARIO, CANADA. ASSIGNOR OF FIFTY-ONE PER CENT TO '1. BERT COLE, OF OTTAWA, CANADA.

OPERATING MECHANISM FOR WHIPPERS.

Application filed March 29, 1927.

This present invent-ion. relates to improvements in the operating mechanism for a whipper and appertains particularly to a novel and efficient means for actuating my improved whipper with a reticulated wire screen agitating element that forms the subject matter of a copending application.

The primary object of this invention is to provide means for oscillating the agitator by alternate reversed rotations of the supporting shaft, the same being occasioned by the vertical reciprocations of an actuator.

A further object is to provide a simplified. form of supporting frame for the agitator shaft and its actuator, that will preferably limit the reciprocations of the latter, and serve also to prevent its rotation or other unauthorized displacement.

A further object is to provide in combination a supporting frame, a shaft and actuator that allow of the positive operation of the parts as the frame is .held firmly, in one hand of the operator, while the actuator is readily and definitely reciprocated by the other hand and that will afford no opportunity for the moving parts to jam but will always function efficiently.

A still further object of the invention is to provide an operating mechanism for a whipper that is characterized by a highly efiicient design, structural simplicity a minimum number of parts, and that is capable of production at a reasonable cost, being thereby rendered commercially desirable.

To the accomplishment of these and related'objects, my invention resides in the construction, combination and arrangement of parts as shall be hereinafter more fully described, illustrated in the accompanying drawing and pointed out in the claims hereunto appended.

The invention will be best understood and can be most clearly described when referonce is had to this attached drawing that forms a part of the disclosure.

This drawing represents a perspective elevation of my invention, the lower portion of the whipper or agitating member being broken away as it does not comprise an es-- sential part of the present invention but forms the subject matter of a separate application.

In the beating or whipping operation, the constant rotation of the agitator in a given direction has been found inferior to the Serial No. 179,268.

effect produced by the rapid oscillation of the beating or whipping elements especially when they are formed, as in the present instance, of reticulated wire screen material.

Oscillators that are operated by a oneway pressure alone and depend on a spring or other extraneous medium or force for their return stroke necessarily fail in delivering the maximum of efficiency in most cases since, if the medium being treated changes in form or consistency, the operating stroke would vary to compensate for the change but the return force remains constant thus either requiring additional and waste energy at one time or the lagging and weakening of the movements on the other.

The invention comprises a frame A formed of a strip of sheet-metal bent midway of its ends in a loop to provide the handle B from which the two ends C depend as a pair of uniformly spaced legs, held apart at the top by a bearing block D supported thereby and terminally bent at their lower ends E toward each other to overlie or overlap at such ends.

The reduced upper end F of the beater rod or shaft G is received in the bearing block D and from there to the inturned ends Ev of the frame A the said rod is square in cross section; the lower half of the rod G, i. e., the portion below the frame A, is preferably round in cross section and of reduced diameter, passing through registering perforations in the said lower inturned ends E so that the lower corners of the square portion of the rod rest on the said overlapped ends as shoulders thereby preventing any unauthorized displacement of the said shaft.

011 the lower part of the shaft G, is mounted the beater or agitator H, here shown as comprising a pair of oppositely disposed reticulated wire screen wings, but as the specific type of agitator used is not an essential part of this invention and is not shown complete in the drawing, it will not be here described in detail.

The shaft G, supported in the frame A and held against longitudinal displacement is mounted for rotative movement and particularly designed to be oscillated. The upper half of the square portion of the rod G, is twisted in a spiral through a given number of turns while the lower half of the same square portion is straight. An ac- Lil causing its reciprocation.

2 LeveAes tuator I, formed as a. shallow U. is carried by this part of the rod Gr; its body J being of a length slightly exceeding one-half the distance between the bearing block D and the inturned frame ends E while the arms K of the actuator member I are perforated in alignment to receive the sha t G, the perforation in the upper arm being a square opening fitting snugly around the spn y bent shaft, while the lower arm is provided with a circular aperture of sad ameter to permit the free ro shaft therein. As this actuator 1 from substantially the same mat frame A and in width is substanti y to the spacing of the spaced legs (1 it ob viously permitted to re :iprocate freely within the confines of the bearing block C and the frame ends E and that in so do as it is held against rotatiom the positive actuation of the shaft G will result;

A knob L projects laterally from the U- shaped member I whereby the operator afforded a handy grip and a. ready means for The biped actuator being slightly longer th a one-half the length of the square portion of the rod G provides for stopping the upper arm K before it leaves the spiral parts of the shaft by the contact of the lower arm with the inturned frame E and similarly the enga ement of the upper arm K with the bearing block D on the upward stroke stops the lower arm K from engaging the spiral partof the rod so that no jamming or straining of the parts can possibly occur.

It is felt the construction of the device will be thoroughly understood after a review of the foregoing description so it should suflice in conclusion to observe in. reference to its modus operandi, that the handle part B of the frame is held lirmly in one hand of the operator while the actuator knob l. is vertically reciprocat'ed by the other and, has been pointed out the reciprocations can carry the actuator from end to e d in the straight part of the frame w bout danger of jamming or straining any'of the parts.

From the foregoing description taken in connection with the accompanying drawi it will be manifest that an operating mechanism for a whipper is provided that ful ill all the necessary requirements of a device but as many changes could be n in the above description and many appa"- cntly widely different embodiment of my invention. constructed within the scope of what is claimed without departing from the spirit or scope thereof it is intended. that all matters contained in the said accompanying specification and drawing shall be in terpreted as illustrative and not in a limitsense.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is l. A whipper comprising a frame bent double on itself to provide a pair of spaced side members the lower ends of which are bent toward each other and adapted to overlap, a bearing block supported near the top by said side members, a shaft mounted between said side members continuing at the bottom through said overlapped ends and journalled at its upper end in said bearing block and an actuator reciprocably mounted on said shaft and held against rotation by said frame.

2. A whipper comprising a frame prepared from a strip of sheet metal formed in a handle loop at the top with the ends depending as a pair of spaced legs and terminally perforated and inturned to overlap, so that the perforations register, a spiral shaft supported between said spaced legs and extending at the lower end through said registering perforations and an actuator reciprocably mounted on said shaft and held against. rotation by said frame.

8. A whipper comprising a frame prepared from a strip of sheet metal formed in a handle loop at the top with the ends depending as a pair of spaced legs and terminally perforated an inturned to overlap so that the perforations register; a bearing block spaced between and supported by said legs at the top; a spiral shaft, journalled at the top in said bearing block and extending at the lower end through the registering perforations in said inturned ends, held against longitudinal displacement by said block and inturned ends; and an actuator reciprocably mounted on said shaft and held against rotation by said frame.

4. A whipper comprising a frame prepared from a strip of sheet metal formed in a handle loop at the top with the ends depending as a pair of spaced legs and termin ally perforated and inturned to overlap, so that the perforations register; a bearing block spaced between and supported by said legs at the top; a shaft journalled at the top in said bearing block and extending at the lower end through the registering perform tions in said inturned ends, said shaft being of substantially greater diameter between said bearing block and perforated inturned ends than below said ends to provide a shoulder for contact with said inturned ends to prevent longitudinal displacement of said shaft; and an actuator reciprocably mounted on said shaft and held against rotation by said frame. I

5. A whipper comprising a frame prepared from a unitary strip of material bent midway of its ends to form a handle loop from which the ends depend as a pair of spaced legs terminally perforated and bent towards each other to overlap so that the perforations register; a rotatable shaft mounted between said legs and continuing through said overlapped ends, means to pre vent the longitudinal displacement of said shaft; an agitating element on the lower end of said shaft, exterior of said overlapped ends; and a vertically reciprocable actuator operating on said shaft and held against r0- tation by said frame.

6. A Whipper comprising a frame prepared from a unitary strip of material bent midway of its ends to form a handle loop from which the ends depend as a pair of spaced legs terminally perforated and bent towards each other to overlap so that the perforations register; a rotatable shaft mounted between said legs and continuing through said overlapped ends; means to pre vent the longitudinal displacement of said shaft; an agitator element on the lower end of said shaft, exterior of said overlapped ends; and a vertically reciprocable actuator operating on said shaft and held against rotation by said frame, said actuator being in the'form of a shallow U whose parallel arms are apertured to receive the said shaft and are spaced so that their spread on the GEORGE A. HERRON. [L. s] 

